We analyze cost reductions possible with the introduction of a waveband converter or both wavelength and waveband converters to hierarchical optical path networks. We propose network design algorithms that are based on multistage integer linear programming (ILP) or heuristics. Numerical experiments prove that by employing waveband converters or both waveband and wavelength converters, hierarchical optical path networks can be cost effective over wide traffic demand ranges and a broad converter cost range.
© 2013 Optical Society of America
Original Manuscript: January 23, 2013
Revised Manuscript: September 3, 2013
Manuscript Accepted: September 10, 2013
Published: October 31, 2013
Zhi-shu Shen, Hiroshi Hasegawa, and Ken-ichi Sato, "Effectiveness of Wavelength/Waveband Conversion and Its Allowable Cost Bound for Hierarchical Optical Path Networks," J. Opt. Commun. Netw. 5, 1262-1274 (2013)